The correct graph with no solution for the system of equations y=2x+4 and −2x+y=8 is:
C. A coordinate plane with 4 quadrants ranges from negative 10 to 10 in unit increments on both the x and y axes. A solid line and a dashed line with arrows at both the ends are drawn parallel to each other on the graph. The solid line passes through (-2, 0) and (0, -4). The dashed lines pass through (-4, 0) and (0, -8).